The Lions' No. 9 overall pick in the 2006 NFL Draft, Sims has bounced around the league as an insurance policy with the Eagles, Colts and Cowboys over the past four seasons. Speedy but undersized and lacking playmaking ability, Sims has been a below-average starter in run support, pass rush and coverage skills.

At this stage of his career, Sims is purely an injury fill-in to be used in emergency situations. His signing speaks to the Cardinals' desperation after losing Washington and failing to re-sign leading tackler Karlos Dansby.